404 page issues affecting your site rankings

The 404 page is the page that is returned when the http://www.aliyun.com/zixun/aggregation/18678.html "> user enters the wrong link."

The purpose of the 404 page is to tell the viewer that the requested page does not exist or link incorrectly, and that the user is directed to use other pages of the site instead of closing the window to leave.

Some time ago because of 404 pages, and lead to a decline in the site rankings, and now with everyone to exchange their own understanding of the 404 page

404 Page Setup Improperly, will likely affect the site's updates and rankings, if the 404 page set improperly, return the hint HTML code, will cause the page to return 200 status code, at this time the harm is, when many pages are not found, return and access to the normal page when the same 200 status code, will make the search engine that the link exists, and the content of the error page included, when such a lot of links, will lead to a large number of pages to repeat, so that the site ranking lower.

Everyone is accustomed to making a 404 page for their own website, some friends also do very beautiful, in fact, the role of the 404 page is to tell visitors that he visited the page has not existed, the general friend will choose to do a link to the first page in 404 pages, or with a section of JS code How many seconds to jump to the front page to avoid loss of traffic. However, the 404 page settings are hidden in a lot of danger inside, 404 set the Bad will be possible to produce the following kinds of situations:

1: Home by K

2: Site snapshots are not updated

3: Site Down Right

4: Site ranking down

When your site occurs, if you can't find the problem, you can check your 404 page settings for normal. The status code returned is 404 instead of 200.

If it's 200, then it's best to remove the custom 404 page or find a way to get it back to the 404 status code.

Specific how to know your 404 page return code now give everyone a site can go to the above query, I often use this tool

Http://www.seobox.org/getheader.htm

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